Using grammar rules alongside test tubes, biologists may have found a promising new way to fight nasty bacteria, including drug-resistant microbes and anthrax.

Studying a potent type of bacteria-fighters found in nature, called antimicrobial peptides, biologists found that they seemed to follow rules of order and placement that are similar to simple grammar laws. Using those new grammar-like rules for how these antimicrobial peptides work, scientists created 40 new artificial bacteria-fighters.........